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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
13 Aug 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Cross-reference
Reason / purpose for cross-reference:
reference to other study
Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other:
Remarks:
The appearance of the test item is described in a reliable study report on the physical-chemical properties of the substance. Since no guideline was followed and no details on the methods are given, the description is considered as reliable with restrictions.
Reason / purpose for cross-reference:
reference to other study
Qualifier:
no guideline required
Principles of method if other than guideline:
Visual inspection
GLP compliance:
no
Specific details on test material used for the study:
Storage conditions: Ambient temperature (10 to 30 °C), protected from light
Physical state at 20°C and 1013 hPa:
solid
Form:
solid
Colour:
yellowish
Substance type:
organic

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
GLP compliance:
no
Type of method:
air comparison pycnometer (for solids)

Test material

Constituent 1
Chemical structure
Reference substance name:
4-(2-phenylpropan-2-yl)phenyl 4-oxo-3-(λ⁵-diazynylidene)-3,4-dihydronaphthalene-1-sulfonate
Cas Number:
23121-00-8
Molecular formula:
C25H20N2O4S
IUPAC Name:
4-(2-phenylpropan-2-yl)phenyl 4-oxo-3-(λ⁵-diazynylidene)-3,4-dihydronaphthalene-1-sulfonate
Test material form:
solid
Specific details on test material used for the study:
Storage conditions: Ambient temperature (10 to 30 °C), protected from light

Results and discussion

Density
Type:
relative density
Density:
ca. 1.35 other: dimensionless
Temp.:
20 °C

Any other information on results incl. tables

Results
Two test series with different weight were done at ambient temperature (20.0 °C).

Table 1 – 1stTest Series Results

Weight: 2.0732 g

p1[psi]

p2[psi]

Volume [cm3]

DensityρPR[g/cm3]

1stmeasurement

19.560

9.992

1.5416

1.3448

2ndmeasurement

19.586

10.006

1.5407

1.3457

3rdmeasurement

19.533

9.979

1.5406

1.3457

Mean

 

 

1.5409

1.3454

 

Table 2 – 2ndTest Series Results

Weight: 1.8599 g

p1[psi]

p2[psi]

Volume [cm3]

DensityρPR[g/cm3]

1stmeasurement

19.511

10.099

1.3671

1.3605

2ndmeasurement

19.543

10.117

1.3652

1.3624

3rdmeasurement

19.523

10.106

1.3660

1.3615

Mean

 

 

1.3661

1.3615

 

The mean density for the two test series is 1.35 g/cm3.

Conclusion: The relative density of the test item at ambient temperature (compared to water at 4 °C) was determined to be: D4R= 1.35

Applicant's summary and conclusion